Model: 11387B

Valve Seat

Properties:

Thread Class

2a single threaded portion

Flange Diameter

5.250 inches

Body Inside Diameter

3.500 inches

Flange Seat To Disk End Height

1.000 inches

Under Flange Height

0.500 inches

Seat Angle In Deg

45.000

Thready Qty Per Inch (tpi)

12 single threaded portion

Thread Size

4.250 inches single threaded portion

Seating Surface Shape

Angular

Material

Copper alloy

Style Designator

Threaded flanged

Thread Series Designator

Un single threaded portion

NSN

4820-00-620-7370

Part Number

11387B

Description

Seat,valve

CAGE

04537

A replaceable item designed to provide a stationary seating surface for a mating, moveable item such as a valve disk or the like. The body may have a flange of various shapes. For diesel and gasoline reciprocating engines, see insert, engine valve seat.

Part 11387B NSN 4820-00-620-7370

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

22113

FIIG:

A15500

Concept No.:

App. Key:

Cond. Code:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

Packaging & Shipping

Est. Pack Size

Est. Pack Weight

Est. Item Weight

Est. Item Dim.

Pack Size:

Paclk Weight:

Item Weight:

Item Dim:

OPI

SPI No.

SPI Rev.

SPC Mkg.

LVL A

LVL B

OPI:

SPI No.:

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

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Schedule B and Export

Schedule B: 8481909090
SITC: 74790
End Use: Industrial machines, other
NAICS: 332911
USDA: 1

Freight Class: Parts of taps, cocks, valves and similar appliances, nesoi